With lifespans stretching far beyond human comprehension, creatures like the hydra, Greenland shark and Aldabra tortoise don’t experience the urgency of time that fast-living species do. There are ...

Giant tortoises are some of the long-lived species on the planet. Here’s what biologists now understand about one of nature’s most impressive longevity experiments. Giant tortoises are redefining what ...

For the desert tortoise, an approximately 1-foot-long reptile found in desert valleys across California and the American Southwest, a full lifespan can be up to 80 years. So while the Mojave National ...